12.
Duplicate this layer that you have just painted and alter the color (Ctrl+U again)
for one more orange or brown. Choose another layer mixing type to produce a result
as the one shown below. Rotate and resize that layer and, if necessary, alter
the layer transparency to get a satisfactory result:
13.
Softening the iris outlines to break the painting aspect. For that, use: Filter>
Blur> Gaussian Blur... Choose a value not very high for not blotting too much.
In this case, I used "6":
14.
To darken and to delimit the outline of the iris, use the drop shadow with "Distance=0",
little or no "Spread" and the best value that you find in "Size".
Change "Blend Mode" to produce the best effect. Tip: you can also use
"Outer Glow" to reinforce the shadows, like shown:
15.
Select the layers where you painted the radial waves and apply a drop
shadow, so their lines will have volume and seem like fibers:
16.
To randomize a bit, create a new layer, select the white color for the background
and the black for foreground and apply "Render > Clouds" filter.
Blur their borders using gaussian blur filter and a few times:
17.
Add more details to the layers where you worked the irregularities. Create
a circular selection and go in the menu "Edit > Stroke... ". Choose
a high value for the stroke (12, 14 etc). Applying the stroke you will obtain
a result like this:
18.
Use the gaussian blur again with a high value, according to the image on the left:
19.
Resize that layer to center of the iris, adding certain depth in that
central area:
20.
We will begin the blood vessels creating a new layer, choosing a red color but
with a little bit of orange, to break the red aspect. Choose a very small brush
and begin painting at the center-borders and borders-center directions:
21.
Create a new layer and add more veins larger and smaller:
22.
Create another layer and add a red border as indicated on the left:
23.
Create other layer where you will add some small blood vessels, creating some
stains in the located area between the iris and the white area of eye surface:
24.
Here is the "final" version (don't worry about the reddest parts. It
practically will disappear in your character's eye):
